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				<h1 id="topic_header_text">Main cursor</h1>
				
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<p></p>
<p class="rvps2"><span class="rvts6">The main graphic cursor is a graphical help for analysis. It permits to point any coordinates within the graphic area.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Just click anywhere in the graphic area to make the cursor visible. Press the mouse right button and move the mouse to have the cursor following your movements. Release the mouse right button and the cursor gets fixed.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><a name="Cursor type"></a>
<span class="rvts6">Default cursor type is 'Cross', which means that graphical cursor is taking a cross form.</span></p>
<p class="rvps2"><span class="rvts6">There are actually seven cursor modes:</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">None: Graphical cursor is disabled</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Vertical line: Cursor is a vertical line following the mouse along the X axis</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Horizontal line: Cursor is a horizontal line following the mouse along the Y axis</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Cross: Cursor is cross made by a vertical and a horizontal line, lines crossing each other at the mouse location</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Graticule: Cursor is a small cross following the mouse inside the graphic area</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Square: Cursor is a small square surrounding the actual mouse location</span></li>
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Circle: Cursor is a small circle surrounding the actual mouse location</span></li>
</ul></ul>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">To change the cursor type, click on the 'Main graph cursor type' of the tool bar </span><img alt="" style="padding : 1px;" src="lib/Cursor_type_16.png"><span class="rvts6">and select the desired type. You can also use the 'Cursor' menu </span><img alt="" style="padding : 1px;" src="lib/Cursor_type_16.png"><span class="rvts6"> of the graphic contextual menu (right click in the graphic area). 'Vertical line', 'Horizontal line' and 'Cross' are also available through keyboard shortcuts 'V', 'H' and 'K'.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">While moving the graphic cursor, you can see in the </span><a class="rvts13" href="Legend.html">legend</a><span class="rvts6"> that each trace value is updated with the actual value of the trace at the position of the cursor.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Window_2.png"></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><a name="Cursor_values"></a>
<span class="rvts6">In addition of that, for 'Vertical', 'Horizontal' and 'Cross' cursor types, values of graphical coordinate are showed.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Window_3.png"></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><a name="Cursor_coord"></a>
<span class="rvts6">By coordinates, we mean X and Y axis values at the position of the cursor. For instance on the screen shot above, '34.414' is the value along the X axis and '4043' is the value along the Y axis which is named 'Rpm'. You may have more than one Y axis at the position of the cursor, in that case all axis values are showed.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Window_4.png"></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Using 'left', 'right', 'up' and 'down' arrow keys of the keyboard you can move the cursor to the direction you want. Obviously, 'up' and 'down' movements are disabled for the 'Vertical line' cursor type, while 'left' and 'right' are disabled for the 'Horizontal line' type.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">By setting the 'Cursor step' you can define how big (or small) cursor movement will be for each arrow key press event.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">To change the cursor step, click the 'Main cursor step' button </span><img alt="" style="padding : 1px;" src="lib/Cursor_step_16.png"><a name="Cursor step"></a>
<span class="rvts6"> of the tool bar and select the step you want. This command is also available through the graphic contextual menu, under the 'Cursor \ Cursor step' menu. You may also use 'Page Up' and 'Page Down' keys to change the cursor step.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Window_5.png"></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Cursor step values are percentage values... OK but percentage of what ? Good question !</span></p>
<p class="rvps2"><span class="rvts6">Step values are percentage of the current X axis values span. For example, if 100 seconds of data are plotted and the cursor step is 1%, the cursor will move by step of 1 second.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">For Y axis, since it could be several different values here, screen size is used as reference value. In other words, with a cursor step of 1%, cursor will move up and down by steps representing 1% of the screen size. </span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Graphical properties of the graphic cursor (color, size) can be adjusted through the graphic configuration form. Please check the </span><a class="rvts13" href="Cursorsproperties.html#Main_cursor">'Cursors properties'</a><span class="rvts6"> section for more details.</span></p>
<p class="rvps2" style="page-break-before: always;"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p></p>
<p class="rvps4"><span class="rvts11">Created with the Personal Edition of HelpNDoc: </span><a class="rvts12" href="http://www.helpndoc.com/feature-tour/iphone-website-generation">Create iPhone web-based documentation</a></p>
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